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POHowcome I can't use a BorderLayout with my panel?
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copied!<p>I am making a program in which there is one frame, which contains a GridLayout g = (2,2), meaning essentially a square divided into four parts. In each part i have added a panel and named them accordingly (tl = top left, tr = to pright, bl = bottom left, br = bottom right) and now I want to add panels into those panels. I want to set the layout of Panel tl to a BorderLayout, and then add a another panel - called tl1 - into tl. Here is my code, but for some reason it won't let me do this. I'm a beginner in java so i'm not really sure exactly how everything works so this might be a stupid question, but as i looked at the syntax for border layout it said that it was written like (component, BORDER.LAYOUT North) or something. Is JPanel not a component and is that why this isn't working?</p> <pre><code>public class BattleShipGrid { JFrame frame = new JFrame("Battleship"); //JPanel tl = new JPanel(); JPanel tl = new JPanel(); JPanel tl1 = new JPanel(); JPanel tr = new JPanel(); JPanel bl = new JPanel(); JPanel br = new JPanel(); JButton b1 = new JButton(); GridLayout g = new GridLayout(2,2,2,2); GridLayout gtl = new GridLayout(11,11,2,2); JButton[][] tlba; public BattleShipGrid(){ frame.setVisible(true); frame.setSize(800,800); frame.setBackground(Color.RED); frame.setLayout(g); frame.add(tl);tl.setBackground(Color.GREEN); tl.setLayout(new BorderLayout()); frame.add(tr);//tr.setBackground(Color.BLUE); frame.add(bl);//bl.setBackground(Color.GREEN); frame.add(br);//br.setBackground(Color.YELLOW); /*GridBagConstraints gbc = new GridBagConstraints(); gbc.insets = new Insets(15,15,0,0); tl.setLayout(gtl); gbc.gridx = 3; gbc.gridy = 3; tl1.add(b1); */ //ADD A TOOLBAR SO THAT THE USER CAN MAKE A NEW GAME OR ACCESS OTHER OPTIONS tl1.setBackground(Color.yellow); tl.add(tl1, BorderLayout); tl1.setPreferredSize(new Dimension(200,200)); </code></pre>

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